| Previous :: Next Topic |
| Author |
Message |
kiliki
Member
Joined: 07 Apr 2003
Posts: 2326 | TRs | Pics
Location: Seattle |
|
kiliki
Member
|
 Mon Oct 13, 2003 8:32 pm |
|
|
Optical illusion?
Moonrise Over Seattle
Credit & Copyright: Shay Stephens
Explanation: Is the Moon larger when near the horizon? No -- as shown above, the Moon appears to be very nearly the same size no matter its location on the sky. Oddly, the cause or causes for the common Moon Illusion are still being debated. Two leading explanations both hinge on the illusion that foreground objects make a horizon Moon seem farther in the distance. The historically most popular explanation then holds that the mind interprets more distant objects as wider, while a more recent explanation adds that the distance illusion may actually make the eye focus differently. Either way, the angular diameter of the Moon is always about 0.5 degrees. In the above time-lapse sequence taken near the end of 2001, the Moon was briefly re-imaged every 2.5 minutes, with the last exposure of longer duration to bring up a magnificent panorama of the city of Seattle.
|
| Back to top |
  
|
|
Backpacker Joe
Blind Hiker
Joined: 16 Dec 2001
Posts: 23956 | TRs | Pics
Location: Cle Elum |
That qualifies as cool. I bet Kerry or Larry have some pretty good shots like that.
TB
"If destruction be our lot we must ourselves be its author and finisher. As a nation of freemen we must live through all time or die by suicide."
— Abraham Lincoln
"If destruction be our lot we must ourselves be its author and finisher. As a nation of freemen we must live through all time or die by suicide."
— Abraham Lincoln
|
| Back to top |
|
|
peppersteak'n'ale
Member
Joined: 28 Aug 2003
Posts: 1996 | TRs | Pics
|
Hey, that's a really cool photo, but I'm still convinced it's made of green cheese 
|
| Back to top |
|
|
jenjen
Moderatrix
Joined: 30 Jun 2003
Posts: 7617 | TRs | Pics
Location: Sierra stylin |
|
jenjen
Moderatrix
|
Mon Oct 13, 2003 9:45 pm |
|
|
We could get one of those cheese slicer looking things people put on the back of their cars and go find out!
If life gives you melons - you might be dyslexic
If life gives you melons - you might be dyslexic
|
| Back to top |
|
|
peppersteak'n'ale
Member
Joined: 28 Aug 2003
Posts: 1996 | TRs | Pics
|
|
| Back to top |
|
|
kiliki
Member
Joined: 07 Apr 2003
Posts: 2326 | TRs | Pics
Location: Seattle |
|
kiliki
Member
|
Tue Oct 14, 2003 10:23 am |
|
|
Maybe spending time on the eastside makes your brain a little crazy? 
|
| Back to top |
|
|
MooseAndSquirrel
Member
Joined: 10 Nov 2002
Posts: 2036 | TRs | Pics
|
Yeah, whatever...... 
Viewing Mt. Rainier suddenly gives that same illusion. It's really enormous but gradually "shrinks" back to a more normal size.
What building did you work in Quark if it isn't a big secret? The big brown glass one, the north or south blue glass towers, or the newish silver one in between? I'd use names but they're always changing the damn things. I worked at Rainier Plaza & had access to the roof- nice for areas views & the Blue Angels, etc.
|
| Back to top |
|
|
Larry
Member
Joined: 22 Feb 2003
Posts: 1084 | TRs | Pics
Location: Kitsap |
|
Larry
Member
|
Tue Oct 14, 2003 5:53 pm |
|
|
| Backpacker Joe wrote: | | That qualifies as cool. I bet Kerry or Larry have some pretty good shots like that. |
Actually, yahhhh, I do have a shot similar, except it's over Mount Constance looking East from Del Monte Ridge.
|
| Back to top |
|
|
Duncan
Member
Joined: 02 Sep 2003
Posts: 130 | TRs | Pics
|
|
Duncan
Member
|
Tue Oct 14, 2003 6:26 pm |
|
|
I had heard somewhere that the amount of moisture or humidity in the air can cause that sort of optical illusion to occur. Don't know if it's true or not, but it doesn't sound too unreasonable.....
|
| Back to top |
|
|
MooseAndSquirrel
Member
Joined: 10 Nov 2002
Posts: 2036 | TRs | Pics
|
| Quark wrote: | | Skyline Tower. Watched many a Blue Angel test run from that building.
I'm downtown Seattle now. What a wonderful carnival! |
Ok, that other brown building. Downtown Seattle-yeah it's a carnival for sure. Only see it when forced to by jury duty. Cool bus tunnel. Heard the shopping is wonderful!  .....waterfront is nice diversion though. Enjoy! 
|
| Back to top |
|
|
|
|
